KSPQCGSetTrustRegionRadius#
Sets the radius of the trust region for KSPQCG
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPQCGSetTrustRegionRadius(KSP ksp, PetscReal delta)
Logically Collective
Input Parameters#
ksp - the iterative context
delta - the trust region radius (Infinity is the default)
Options Database Key#
-ksp_qcg_trustregionradius
- trust region radius
Developer Note#
KSPMINRESSetRadius(), for example, does not have TrustRegion in the name
See Also#
KSP: Linear System Solvers, KSPQCG, KSPQCGGetTrialStepNorm()
Level#
advanced
Location#
Implementations#
KSPQCGSetTrustRegionRadius_QCG() in src/ksp/ksp/impls/qcg/qcg.c
Index of all KSP routines
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Index of all manual pages